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First Look at Jawbone's All New Up Fitness Tracking Bracelet

Jawbone is re-releasing its fitness-tracking bracelet, the Up, in eight different colors.

Jawbone is re-releasing its Up fitness-tracking bracelet in eight different colors.

Jawbone's Up was one of the hottest gadgets on the market in 2011 – until it cratered and had to be recalled. The activity tracker – an Yves Behar-designed wristband that sent data to a slick iOS app – was an immediate hit, but it succumbed to a slow burn as band after band failed. The company ultimately took the bracelet off the market and offered refunds to anyone who bought one. Now it's back, re-thought, re-architected and (most importantly) re-engineered. It goes on sale today, and will cost $129.

The bracelet comes in eight colors and is designed to be worn both during the day and at night while sleeping. It tracks movements and counts steps to estimate calories burned and, at night, uses its motion sensors to track the amount of time the wearer sleeps and how much of that was deep versus light sleep. The new Up has a much more robust iOS app, with new features like a bar-code scanner for inputting meals and a power-nap setting that will let the wearer safely snooze for 27 minutes mid-day before the alarm goes off. The app has also been redesigned, and it's got a lot more information at your fingertips than it did previously. While the initial design was pretty, it wasn't quite as up front with details, like deep versus light sleep. The app is also pushing updates to wearers now, suggesting that you may want to go take a walk, for example. Additionally, if you go for a bike ride or swim or some other activity, you can enter that into the app.

But the real improvements are to the band itself, and its success or failure depends entirely on whether or not Jawbone has managed to fix the problems that plagued the previous model. Jawbone says it identified two critical flaws that it has subsequently fixed. The first was improper bonding, which Jawbone says was the core issue. Water was able to penetrate the band's exterior and hit the circuit board, where it rapidly oxidized the bracelet's capacitors. There was also a secondary issue related to pliancy. The company says it found that cracks and fissures could appear on the circuit board over time. In response, Jawbone improved the bonding process and gave the board more flexibility. The company says it developed its own tests for waterproofing that exceed the IPX5, IPX6 and IPx7 industry standards for watches to take into account things like water temperature and soap content.

In Wired's demo of the new Up, the internal electronic band is indeed far more battened down than last year's model. Much of what had been done by hand is now machine made, the band has as a new protective coating, and there are visibly fewer joints and exposed areas. It was difficult to tell whether or not the band is more pliable, but the overall build quality is noticeably better. The big question is: Were the fixes enough? We'll find out soon. Wired is getting a unit in for testing and will have a review in the coming weeks.